Description

Bently Nevada P3403893-0416 990 Series Vibration Transmitter

The Bently Nevada P3403893-0416, also cataloged as the P3403893-0416 990 Series Vibration Transmitter, operates as a dedicated hardware component for converting vibration signals into 4-20 mA outputs within industrial machinery monitoring systems.

Hardware Specifications

Parameter	Specification
Model	P3403893-0416
Brand	Bently Nevada
Product Type	Vibration Transmitter
Series	990 Series
Origin	USA
Weight	Approximately 0.55 kg
Dimensions	Approximately 7.5 cm x 6 cm x 10 cm
Operating Temp	-40 deg C to +85 deg C
Power Consumption	Less than 25 mA
Measurement Input	Compatible vibration sensor input
Output Signal	4-20 mA DC, 2-wire loop powered
Supply Voltage	12-35 VDC
Load Resistance	Up to 600 ohms
Frequency Response	3 to 1,000 Hz typical configuration
Enclosure Rating	IP65 / NEMA 4X type housing, configuration dependent

Eddy-Current Measurement and Rotor Dynamics Interface

The P3403893-0416 processes vibration signals from compatible Bently Nevada sensing systems and converts dynamic mechanical movement into a proportional 4-20 mA current signal. The transmitter interface supports vibration measurement chains based on eddy-current probe technology, where probe scaling and signal conditioning define the relationship between shaft displacement and electrical output.

The device is applied in machinery monitoring loops where rotor dynamics analysis requires continuous vibration trend data. Proper probe installation requires verification of probe gap conditions and signal integrity. Bently Nevada proximity systems commonly reference -10 VDC gap voltage targets for standard eddy-current probe operating points.

Signal processing design considers measurement stability, sensor response characteristics, and cross-talk suppression requirements within vibration monitoring installations. These functions allow integration with PLC, DCS, and condition monitoring platforms for analog vibration data acquisition.

Frequently Asked Questions

Q: What type of electrical output is provided by the P3403893-0416?
A: The transmitter provides a 4-20 mA DC output through a two-wire loop-powered connection for vibration monitoring circuits.

Q: Does the P3403893-0416 require a separate vibration monitoring module?
A: The transmitter provides a conditioned analog output and can connect directly to compatible PLC, DCS, or monitoring input channels that accept 4-20 mA signals.

Q: What sensor technology is associated with this transmitter?
A: The unit is designed for use with compatible Bently Nevada vibration sensing systems, including configurations based on eddy-current proximity measurement technology.

Field Installation Guidelines

• Install the transmitter in a location protected from excessive mechanical shock, moisture, and contamination.
• Use shielded instrumentation cable for signal wiring where required by the plant grounding practice.
• Connect cable shields according to site grounding standards to reduce electrical interference.
• Verify sensor wiring polarity and loop power availability before commissioning.
• Confirm vibration sensor gap settings and signal scaling before connecting the transmitter output to the control system.
• Maintain separation between low-level vibration signal wiring and high-voltage power cables.

Specifications

• Brand: Bently Nevada

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems